No moat. Still in business.

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A hosted API for product teams to send app notifications over email, SMS, push, chat and an in app inbox.

Since 2020

Free plan · Transactional email · Developers

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Library of recorded iOS app screens, onboarding and paywalls that app teams and their AI agents can search.

Since 2018

Design and images · Developers

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Coordinates and automates mobile app releases for iOS and Android teams, from release trains to staged rollouts.

Since 2021

Developer tools · Developers

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Open-source error tracker that ranks frontend bugs from errors and session replays and opens fix pull requests on GitHub.

Since 2024

Uptime and monitoring · Developers

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A free markdown notes app you run on your own server, with wikilinks, a graph view, diagrams, math and an MCP link for AI tools.

Free · Notes and knowledge · Individuals and families

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Web workspace for using many AI models side by side with your own API keys, comparing and merging their answers.

Free plan · Something else · Individuals and families

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Make songs with AI in a browser studio or through an API, and get the finished mix plus each separate stem.

Free plan · Video and audio · Creators and writers

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Checks single addresses or whole lists for syntax, mail server and mailbox problems, by upload or API, with an email finder too.

Free plan · Email marketing

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Clipboard history for Apple devices that keeps everything you copy searchable, syncs it through iCloud and feeds it to AI coding tools.

Free trial · Focus and productivity · Individuals and families

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Gateway that sits in front of your LLM calls to log traces, track cost, run evals and strip personal data.

Free plan · Security and passwords · Developers

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Turns PDFs, Office files, scans and web pages into clean Markdown for use with AI chat tools, via web, API or MCP.

Since 2025

Free plan · Documents and e-signature

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A hosted MCP server and REST API that gives Claude, ChatGPT or Cursor your Search Console data, SERPs and keyword volumes.

Since 2026

Free plan · SEO

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Lets developers send templated email from browser or app code through their own mail provider, without writing a server.

Free plan · Transactional email · Developers

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Desktop app for Mac and Windows that stores your SVG icon sets, searches open icon libraries offline and exports them as code.

Free trial · Design and images · Developers

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Adds AI translations to your app's language files on each pull request, so the team can review and edit them before merge.

Free trial · Developer tools · Developers

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Desktop scratchpad that runs JavaScript as you type, with Node, browser APIs and npm packages, for developers testing ideas.

Since 2024

Free plan · Developer tools · Developers

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An online workspace for writing, running and sharing AI prompts across several models, for teams building LLM features.

Since 2023

Free plan · Developer tools · Developers

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A gateway that lets platform teams reach many AI model providers through one key, with spend limits, routing and logs.

Developer tools · Developers

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WebSocket server for app developers that keeps realtime messages ordered and recovers them after dropped connections.

Free · Developer tools · Developers

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A Mac app that gives programmers offline search across 200+ API doc sets, cheat sheets and their own code snippets.

Developer tools · Developers

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Edits and renders videos for you from a brief or template, with a manual editor and an API for bulk video creation.

Since 2024

Free plan · Video and audio · Online sellers

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Gives AI assistants and agents authenticated access to over 1,500 apps so they can take actions, with a managed MCP gateway.

Pay as you go · Developer tools · Developers

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Open-source gateway that routes app requests to many LLM providers, with budgets, guardrails and logging.

Free · Developer tools · Developers

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A GitHub app that runs AI agents in GitHub Actions to review pull requests, triage issues and fix failing CI.

Free plan · Developer tools · Developers

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Hosted service that runs your MCP servers behind a single URL, holds credentials and logs each tool call per client.

Since 2023

Free plan · Developer tools · Developers

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A desktop app that sends one prompt to ChatGPT, Gemini and Claude at once and shows the answers side by side.

Free · Focus and productivity · Individuals and families

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Test, debug and run evals on MCP servers across many AI clients, locally or in CI, for teams building them.

Since 2026

Free plan · Developer tools · Developers

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Shared SQL editor for data teams that stores common queries and sends scheduled results to Google Sheets or Slack.

Since 2026

Free trial · Developer tools · Developers

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Keeps an ML project's decisions, evidence and next steps in a brief that Claude, ChatGPT or Cursor can load and update.

Since 2026

Free plan · Developer tools · Developers

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A hosted backend and SDK so developers can add LLM chat to client apps using their own provider keys, with no server code.

Since 2025

Developer tools · Developers

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For developers: pulls crash reports out of Sentry or PostHog, drafts a fix in your own GitHub Actions with your AI key, and opens a PR.

Since 2026

Free plan · Developer tools · Developers

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Hosted service that runs multi-step AI pipelines calling your own backend and streams progress to users.

Since 2026

Free plan · Developer tools · Developers

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Lets AI assistants and developers grab clean web page screenshots from 227 countries through MCP, a CLI or a REST API.

Free plan · Developer tools · Agencies

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An API and MCP server that returns local shows, markets and events as JSON, for developers building apps or AI agents.

Since 2026

Free plan · Developer tools · Developers

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A Windows app that runs several AI coding agents as planner, coders, tester and reviewer on a shared board you control.

Since 2026

Free · Developer tools · Developers

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Chrome extension that checks what you paste into AI chat sites and warns or blocks when it spots passwords, keys or personal data.

Since 2026

Free · Security and passwords

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Watches your app's Claude API calls and points out waste, such as repeated prompts or oversized models, with suggested fixes.

Since 2026

Uptime and monitoring · Developers

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Rents short-lived cloud Macs with Xcode to AI coding agents so developers can build and ship iOS apps without owning a Mac.

Since 2026

Pay as you go · Developer tools · Developers

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An API and MCP server that lets AI agents send contracts and collect two-party signatures by email.

Since 2026

Free plan · Documents and e-signature · Developers

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A hosted wiki that Claude, ChatGPT, Cursor and other AI agents share through MCP, so people can see and edit what the agents know.

Free plan · Developer tools · Developers

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Click elements in a running React app to change layout, styles and text, with edits written back to your source.

Since 2025

Free plan · Design and images · Developers

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API that fetches Google results and answers from ChatGPT, Gemini and others as clean data, for SEO tracking.

Since 2025

Subscription · SEO · Agencies

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Hosts MCP servers and apps in production and checks how they behave across ChatGPT, Claude and other AI clients.

Since 2026

Free plan · Developer tools · Developers

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Shows engineering leaders how much their team uses AI models, what it costs and who is getting value from it.

Since 2026

Subscription · Developer tools · Developers

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Chrome extension that grabs a component from any web page and turns it into code, an AI prompt or Figma layers.

Since 2026

Free plan · Design and images · Agencies

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An API that returns a company logo for any domain from a CDN, with a React component and domain locked keys.

Free plan · Design and images · Developers

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Mac menu bar app that shows how much of your Claude and Claude Code quota and spend you have used.

Free · Developer tools · Developers

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Real-time US stock, ETF and options data through an API or Google Sheets formulas, for traders and developers.

Free plan · Data and spreadsheets · Individuals and families